CN1175531C - Safety circuit for connector - Google Patents
Safety circuit for connector Download PDFInfo
- Publication number
- CN1175531C CN1175531C CNB991031040A CN99103104A CN1175531C CN 1175531 C CN1175531 C CN 1175531C CN B991031040 A CNB991031040 A CN B991031040A CN 99103104 A CN99103104 A CN 99103104A CN 1175531 C CN1175531 C CN 1175531C
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- CN
- China
- Prior art keywords
- voltage
- controlled switch
- jockey
- sensor
- safety circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Keying Circuit Devices (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention relates to a safety circuit for a connecting device, which is in electric connection with an electricity receiving joint and begins to supply a power supply to the electricity receiving joint when the safety circuit for a connecting device is connected with the electricity receiving joint. The safety circuit for a connecting device comprises a casing, a sensor, a controlled switch and a plurality of terminals, wherein the sensor is positioned in the casing and used for sensing a second voltage, and the sensor senses a first voltage and generates a first signal when connected with the electricity receiving joint; the controlled switch is positioned in the casing and is in electric connection with the sensor; when receiving the first signal from the sensor, the controlled switch can be turned on; a first terminal is in electric connection with the sensor, and the rest terminals are in electric connection with the controlled switch.
Description
Technical field
The present invention relates to a kind of safety circuit of jockey, in order to being electrically connected, begin to provide power supply to be subjected to electric connection when be connected by electric connection to this with this with being subjected to electric connection.
Background technology
Early stage joint does not have safety protection function.Outside only being exposed to by a plurality of conductor pins; When contacted with this joint by electric connection, then can directly be electrically connected with this conductor pin.Because outside this conductor pin is exposed to, if feeder ear then, for example battery backup unit (BBU, Battery BackupUnit) or high voltage source supply are selected this joint for use, then cause the user that the danger of electric shock is arranged easily.For the user, this is an inconvenience of perplexing greatly and using beyond doubt.
Summary of the invention
The objective of the invention is in order to improve above all defectives, and made perfect improvement, for the user provides maximum safety with dangerous.Therefore the invention provides a kind of safety circuit of jockey, below is brief description of the present invention.
Therefore; goal of the invention of the present invention is to provide a kind of safety circuit of jockey, and this safety circuit is used to protect the device desiring to connect, avoids it to be subjected to the influence that transient voltage changes; the design of this safety circuit is not only simple, and fail safe and compatibility are all very high.
In order to realize the foregoing invention purpose, the invention provides a kind of safety circuit of jockey, in order to be electrically connected, when be electrically connected by electric connection, begin to provide power supply to be subjected to electric connection to this with this with being subjected to electric connection, it comprises: shell; Sensor, comprise a resistance, one end of this resistance is electrically connected with the power supply of second voltage, the other end of described resistance is electrically connected with first terminals and is electrically connected with controlled switch, and described sensor is positioned at described shell, in order to described second voltage of sensing, and when be electrically connected by electric connection with this sensing first voltage and produce first signal, described second voltage refers to be higher than the low-voltage of described first voltage; Described controlled switch is positioned at this shell, and be electrically connected with sensor, described controlled switch is made up of a plurality of transistor, the one end is electrically connected with power supply, the other end is connected with described remaining terminals, when this controlled switch receives first signal from described sensor, then can start its switch: and a plurality of terminals, wherein first terminals are electrically connected with described sensor, remaining terminals then is electrically connected with described controlled switch, described first terminals are meant an earth terminal, thereby with described when be electrically connected by electric connection, provide described first voltage to described sensor by first terminals, simultaneously, remaining terminals then provides described power supply to the described electric connection that is subjected to from described controlled switch.
Wherein shell is in order to protect the safety circuit of this jockey; Sensor then comprises a resistance, and the one end is electrically connected with 5 voltaism voltage sources, and these 5 volts of voltages are meant the low-voltage that is higher than first voltage, and this first voltage is meant earthed voltage; This low-voltage that is higher than first voltage is meant second voltage.
The other end of resistance is electrically connected with the terminals of earth terminal, and is electrically connected with controlled switch; The terminals of earth terminal refer to first terminals.
Sensor can comprise an inverter, so that earthed voltage and 5 volts of voltage exchanges, and an end of this inverter can be electrically connected with controlled switch, its other end can be electrically connected with resistance and earth terminal.
When the safety circuit of jockey when contacted by electric connection, be subjected to electric connection that safety circuit first voltage of jockey is provided, it is earthed voltage, sensor is to its sensing, and transmit first signal to controlled switch, controlled switch then can conducting, can provide power supply thereby a plurality of terminals at controlled switch are electrically connected.
When being subjected to electric connection to break away from the electronic security(ELSEC) power supply connector, then can sense second voltage, i.e. 5 volts of voltages: when sensor sensed these 5 volts of voltages, sensor then transmitted secondary signal to controlled switch, therefore controlled switch then can cut off, promptly at a plurality of terminals deenergizations of electric switch.
Controlled switch is made up of a plurality of transistors or relay; One end of controlled switch is electrically connected with power supply, and its other end is electrically connected with remaining terminals.When controlled switch receives first signal from sensor, then can start controlled switch, make the safety circuit of this jockey provide power supply through a plurality of terminals, promptly when contacted with the safety circuit of jockey by electric connection, sensor senses the earthed voltage that is subjected to electric connection.
When controlled switch receives secondary signal from sensor, controlled switch is cut off the electricity supply, wherein cutting off the electricity supply is when being subjected to electric connection to break away from the safety circuit of jockey, sensor takes place when sensing 5 volts of voltages; 5 voltaism end fingers, second voltage wherein.
When a plurality of terminals not when be connected by electric connection, it is in electroless state, and remaining terminals can be electrically connected with being subjected to electric connection, so that power supply to be provided; First terminals refer to the terminals of earth terminal.
Description of drawings
The present invention can have more deep understanding by following drawings and detailed description:
Fig. 1: the circuit diagram of the safety circuit of the jockey of the preferred embodiment of the present invention
1: be subjected to electric connection 2: power supply
3: shell 4: sensor
5: controlled switch 6: a plurality of terminals
7: resistance 8:5 volt voltage
9: earth terminal terminals 10: inverter
11: earthed voltage
Embodiment
See also Fig. 1, the safety circuit of jockey of the present invention provides power supply 2 to be subjected to electric connection 1 to this when be electrically connected by electric connection 1, and it comprises shell 3, sensor 4, controlled switch 5 and a plurality of terminals 6 (example in the drawings is two terminals 6).
Shell 3 is in order to protect the safety circuit of this jockey.Sensor 4 then comprises resistance 7; One end of this resistance 7 is electrically connected with the power supply of 5 volts of voltages 8: these 5 volts of voltages 8 refer to second voltage; Its other end is electrically connected with earth terminal terminals 9, and is electrically connected with controlled switch 5; Earth terminal terminals 9 refer to first terminals.
Certainly, sensor 4 more can comprise inverter 10, makes earthed voltage 11 and 5 volts of voltage 8 exchanges, and sensor 4 can be electrically connected with controlled switch 5, and its other end then can be electrically connected with the terminals 9 of resistance 7 and earth terminal; And the terminals 9 of earth terminal refer to first terminals.
When the safety circuit of this jockey when contacted by electric connection 1, be subjected to 1 of electric connection that the safety circuit earthed voltage 11 of this jockey is provided, therefore and conducting make this earthed voltage of sensor 4 sensings, and transmit first signal that controlled switch 5 to controlled switch 5; When controlled switch 5 conductings, a plurality of terminals 6 that are electrically connected on controlled switch 5 can provide this power supply 2; And this controlled switch 5 is made up of a plurality of transistor; The joint earthed voltage refers to first voltage.
When being subjected to electric connection 1 to break away from the safety circuit of this jockey, then can sense 5 volts voltage 8, and transmit secondary signal to controlled switch 5: when this controlled switch 5 receives the secondary signal that comes from sensor 4,5 of controlled switchs can cut off, and a plurality of terminals 6 that promptly are connected in this controlled switch 5 interrupt its power supply 2.Wherein these a plurality of terminals 6 are electroless states not when be connected by electric connection 1.
The power supply 2 of indication of the present invention is DC power supply preferably, but also can be applicable on the AC power.Selecting for use of controlled switch 5 can be selected all kinds of transistor switches for use with various demands, and thyristor (SCR, Silicon Control Rectifier), or mechanical switch are as relay (Relay) etc.
By above-mentioned diagram and explanation, we can obtain following some conclusion: one, and the safety circuit fail safe of jockey of the present invention is higher; Two, the safety circuit design of jockey of the present invention is simpler.Three, the safety circuit of jockey of the present invention has compatibility, can utilize original electric connection that is subjected to.
The present invention can make various modifications and variations by those skilled in the art under the situation that does not depart from its protection range.
Claims (17)
1. the safety circuit of a jockey in order to be electrically connected with being subjected to electric connection, begins to provide power supply to be subjected to electric connection to this when be electrically connected by electric connection with this, and it comprises:
Shell;
Sensor, comprise a resistance, one end of this resistance is electrically connected with the power supply of second voltage, the other end of described resistance is electrically connected with first terminals and is electrically connected with controlled switch, and described sensor is positioned at described shell, in order to described second voltage of sensing, and when be electrically connected by electric connection with this sensing first voltage and produce first signal, described second voltage refers to be higher than the low-voltage of described first voltage;
Described controlled switch is positioned at this shell, and be electrically connected with sensor, described controlled switch is made up of a plurality of transistor, the one end is electrically connected with power supply, the other end is connected with described remaining terminals, when this controlled switch receives first signal from described sensor, then can start its switch: and
A plurality of terminals, wherein first terminals are electrically connected with described sensor, remaining terminals then is electrically connected with described controlled switch, described first terminals are meant an earth terminal, thereby with described when be electrically connected by electric connection, provide described first voltage to described sensor by first terminals, simultaneously, remaining terminals then provides described power supply to the described electric connection that is subjected to from described controlled switch.
2. the safety circuit of jockey as claimed in claim 1, wherein said shell is in order to protect this electronic security(ELSEC) power supply connector.
3. the safety circuit of jockey as claimed in claim 1, the wherein said first voltage finger ground voltage; And second voltage refers to be higher than the low-voltage of earthed voltage, and this low-voltage that is higher than earthed voltage refers to 5 volts of voltages.
4. the safety circuit of jockey as claimed in claim 1, wherein said sensor can comprise an inverter.
5. the safety circuit of jockey as claimed in claim 4, wherein said inverter makes earthed voltage and the low-voltage exchange that is higher than earthed voltage, and an end of inverter can be electrically connected with controlled switch, and the other end of inverter can be electrically connected with the resistance and first terminals, and wherein first terminals refer to earth terminal.
6. the safety circuit of jockey as claimed in claim 1, wherein sensing first voltage refers to, when this electronic security(ELSEC) power supply connector when contacted by electric connection, be subjected to electric connection that first voltage then is provided, make sensor to its sensing.
7. the safety circuit of jockey as claimed in claim 6, wherein when sensor senses first voltage, then sensor transmits first signal to controlled switch, and when controlled switch receives first signal that comes from sensor, controlled switch then can conducting, and when the controlled switch conducting, a plurality of terminals that are electrically connected on controlled switch can provide power supply, wherein the first voltage finger ground voltage.
8. the safety circuit of jockey as claimed in claim 1, wherein sensing second voltage refers to, when being subjected to electric connection to break away from this electronic security(ELSEC) power supply connector, then can sense second voltage.
9. the safety circuit of jockey as claimed in claim 8, wherein when sensor senses second voltage, then sensor transmits secondary signal to controlled switch, and when controlled switch receives the secondary signal that comes from sensor, controlled switch then can cut off, and wherein controlled switch cuts off and refers to that a plurality of terminals that are electrically connected on this controlled switch interrupt its power supply.
10. the safety circuit of jockey as claimed in claim 8, wherein second voltage refers to be higher than the low-voltage of earthed voltage, and this low-voltage that is higher than earthed voltage refers to 5 volts of voltages.
11. the safety circuit of jockey as claimed in claim 1, the first voltage finger ground voltage wherein, and second voltage refers to be higher than the low-voltage of earthed voltage, wherein this low-voltage that is higher than earthed voltage refers to 5 volts of voltages.
12. the safety circuit of jockey as claimed in claim 1, wherein controlled switch.
13. the safety circuit of jockey as claimed in claim 1, wherein when controlled switch receives first signal from sensor, then can start controlled switch, make this electronic security(ELSEC) power supply connector provide power supply via a plurality of terminals, wherein this electronic security(ELSEC) power supply connector provides power supply to be meant that sensor senses the earthed voltage that is subjected to electric connection when contacted with this electronic security(ELSEC) power supply connector by electric connection via a plurality of terminals.
14. the safety circuit of jockey as claimed in claim 1, wherein when controlled switch receives secondary signal from sensor, controlled switch is cut off the electricity supply, wherein cutting off the electricity supply is to be subjected to electric connection to break away from the safety circuit of this jockey, and sensor takes place when sensing second voltage.
15. the safety circuit of jockey as claimed in claim 1, wherein said a plurality of terminals are in electroless state not when be connected by electric connection.
16. the safety circuit of jockey as claimed in claim 1, wherein said remaining terminals can be electrically connected with being subjected to electric connection, so that power supply to be provided.
17. the safety circuit of jockey as claimed in claim 1, wherein said first terminals refer to earth terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991031040A CN1175531C (en) | 1999-03-23 | 1999-03-23 | Safety circuit for connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991031040A CN1175531C (en) | 1999-03-23 | 1999-03-23 | Safety circuit for connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1267936A CN1267936A (en) | 2000-09-27 |
| CN1175531C true CN1175531C (en) | 2004-11-10 |
Family
ID=5271118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991031040A Expired - Fee Related CN1175531C (en) | 1999-03-23 | 1999-03-23 | Safety circuit for connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1175531C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110768541B (en) * | 2018-07-27 | 2021-05-04 | 宏碁股份有限公司 | Arc-proof power supply conversion device |
-
1999
- 1999-03-23 CN CNB991031040A patent/CN1175531C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1267936A (en) | 2000-09-27 |
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Granted publication date: 20041110 Termination date: 20130323 |